Introduction to Network Simulator NS2 by Teerawat Issariyakul

By Teerawat Issariyakul

Introduction to community Simulator NS2 is a primer supplying fabrics for NS2 rookies, no matter if scholars, professors, or researchers for realizing the structure of community Simulator 2 (NS2) and for incorporating simulation modules into NS2. The authors talk about the simulation structure and the foremost parts of NS2 together with simulation-related gadgets, community gadgets, packet-related gadgets, and helper objects.

The NS2 modules incorporated inside are nodes, hyperlinks, SimpleLink items, packets, brokers, and functions. extra, the booklet covers 3 helper modules: timers, random quantity turbines, and mistake versions. additionally integrated are chapters on precis of debugging, variable and packet tracing, end result compilation, and examples for extending NS2. appendices give you the info of scripting language Tcl, OTcl and AWK, in addition item orientated programming used widely in NS2.

Introduction to community Simulator NS2 can be utilized by means of researchers, execs or graduate scholars learning telecommunication networks.

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Example text

Among these five data types, real, bandwidth, and time data types make use of a double C++ data type, while integer and boolean employ int and bool C++ data types, respectively. 3, Tcl stores everything in strings.

_o10) in the OTcl domain, and does not contain any functionality. , of class Connector). In the OTcl domain, a handle acts as a frontend which interacts with users and other OTcl objects. It may defines its own procedures and variables to facilitate the interaction. Note that the member procedures and variables in the OTcl domain are called instance procedures Tcl Simulation Script Simulation Objects C++ TclCL Simulation Objects OTcl Simulation Trace File NS2 Shell Executable Command (ns) NAM (Animation) Fig.

3 NS2 Descriptor File The NS2 descriptor file is defined in a file Makefile located in the home directiory of NS2. It contains the details needed to recompile and relink NS2. The key relevant details are those beginning with the following keywords. • INCLUDES = : The items behind this keyword are the directory which should be included into the NS2 environment. • OBJ_CC = and OBJ_STL = : The items behind these two keywords constitute the entire NS2 object files. When a new C++ module is developed, its corresponding object file name should be added here.

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